# GBU15M

**LRC** · Bridge Rectifiers · GBU

GBU15M from LRC, in a GBU. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | - | passive | DC negative output terminal of the bridge, marked "-" on the package; rated for 15 A average rectified output current at Tc=100℃. |
| 2 | 2 | passive | AC input terminal of the bridge, marked "~" on the package; GBU15M is rated at 700 V VRMS. |
| 3 | 3 | passive | AC input terminal of the bridge, marked "~" on the package; GBU15M is rated at 700 V VRMS. |
| 4 | + | passive | DC positive output terminal of the bridge, marked "+" on the package; GBU15M has VRRM and VDC of 1000 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | LRC |
| Package | GBU |
| Category | Diodes |
| Pins | 4 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Maximum repetitive peak reverse voltage | VRRM |  |  | 1000 | V |  | 1 |
| Maximum DC blocking voltage | VDC |  |  | 1000 | V |  | 1 |
| Maximum RMS voltage | VRMS |  |  | 700 | V |  | 1 |
| Maximum DC reverse current | IR |  |  | 5 | µA | at rated DC blocking voltage, TA=25℃ | 1 |
| Maximum DC reverse current | IR |  |  | 500 | µA | at rated DC blocking voltage, TA=125℃ | 1 |
| Maximum average forward rectified output current | Io |  |  | 15 | A | Tc=100℃ | 1 |
| Peak forward surge current | IFSM |  |  | 250 | A | 8.3ms single half sine-wave superimposed on rated load | 1 |
| Rating of fusing | I2t |  |  | 240 | A2sec | t<8.3ms | 1 |
| Dielectric strength terminals to case | Vdia |  |  | 2.5 | KV | AC 1 minute, current 1mA | 1 |
| Max instantaneous forward voltage | VF |  |  | 1.05 | V | at 7.5A | 1 |
| Thermal resistance, junction to ambient | RθJA |  |  | 21 | ℃/W | Maximum thermal resistance per leg on P.C.B. without heat-sink | 1 |
| Thermal resistance, junction to case | RθJC |  |  | 2.2 | ℃/W | per leg on Al plate heat-sink | 1 |
| Operating junction temperature | TJ | -55 |  | 150 | ℃ |  | 1 |
| Storage temperature | Tstg | -55 |  | 150 | ℃ |  | 1 |
| Mounting torque | Tor |  |  | 0.8 | N.m | Rating torque; datasheet suggests 0.45~0.65 N.m | 1 |

## CAD (KiCad official)

- Symbol: `GBU15M`
- Footprint: `Diode_THT:Diode_Bridge_Vishay_GBU`
- 3D model: GBU (KiCad packages3D, STEP)
- 3D model files: `gbu15m-etched.step` / `gbu15m-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `gbu15m.step` / `gbu15m.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [LRC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590236110342422528) (3 pp, sha256 `8e2dc0a0823d24dc`, retrieved 2026-10-15, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/gbu15m-datasheet.pdf)